<template>
  <a-layout>
      <a-layout-sider width="200" style="background: #fff">
        <a-menu
                mode="inline"
                :default-selected-keys="['1']"
                :default-open-keys="['sub1']"
                :style="{ height: '100%', borderRight: 0 }"
        >
          <a-sub-menu key="sub1">
            <template #title>
              <span>
                <user-outlined/>subnav 1</span>
            </template>
            <a-menu-item key="1">
              option1
            </a-menu-item>
            <a-menu-item key="2">
              option2
            </a-menu-item>
            <a-menu-item key="3">
              option3
            </a-menu-item>
            <a-menu-item key="4">
              option4
            </a-menu-item>
          </a-sub-menu>
          <a-sub-menu key="sub2">
            <template #title>
              <span>
                <user-outlined/>subnav 2</span>
            </template>
            <a-menu-item key="5">
              option5
            </a-menu-item>
            <a-menu-item key="6">
              option6
            </a-menu-item>
            <a-menu-item key="7">
              option7
            </a-menu-item>
            <a-menu-item key="8">
              option8
            </a-menu-item>
          </a-sub-menu>
          <a-sub-menu key="sub3">
            <template #title>
              <span>
                <user-outlined/>subnav 3</span>
            </template>
            <a-menu-item key="9">
              option9
            </a-menu-item>
            <a-menu-item key="10">
              option10
            </a-menu-item>
            <a-menu-item key="11">
              option11
            </a-menu-item>
            <a-menu-item key="12">
              option12
            </a-menu-item>
          </a-sub-menu>
        </a-menu>
      </a-layout-sider>
      <a-layout-content
              :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '550px' }"
      >
        <a-list item-layout="vertical" size="large" :pagination="pagination" :grid="{ gutter: 20, column: 3 }" :data-source="ebooks">
          <template #renderItem="{ item }">
            <a-list-item key="item.name">
              <template #actions>
          <span v-for="{ type,text } in actions" :key="type">
            <component v-bind:is="type" style="margin-right: 8px" />
            {{ text }}
          </span>
              </template>
              <a-list-item-meta :description="item.description">
                <template #title>
                  <a :href="item.href">{{ item.name }}</a>
                </template>
                <!--item指的是ebooks这个json对象的元素，即后端数据表的返回给前端的一个字段-->
                <template #avatar><a-avatar :src="item.cover" /></template>
              </a-list-item-meta>
            </a-list-item>
          </template>
        </a-list>
      </a-layout-content>
  </a-layout>
</template>

<script lang="ts">
import { defineComponent, onMounted, ref, reactive, toRef } from 'vue';
import axios from 'axios';
import { UserOutlined } from '@ant-design/icons-vue';
import { message } from 'ant-design-vue';
//import HelloWorld from "@/components/HelloWorld.vue";

const listData: any = [];
 for (let i = 0; i < 23; i++) {
   listData.push({
     href: 'https://www.antdv.com/',
     title: `ant design vue part ${i}`,
     cover: 'https://zos.alipayobjects.com/rmsportal/ODTLcjxAfvqbxHnVXCYX.png',
     description:
         'Ant Design, a design language for background applications, is refined by Ant UED Team.',
     content:
         'We supply a series of design principles, practical patterns and high quality design resources (Sketch and Axure), to help people create their product prototypes beautifully and efficiently.',
   });
 }

export default defineComponent({
  name: 'Home',
  components: {},
  setup() {
    console.log("setup");
    /*1.ref响应数据变化*/
    const ebooks = ref();
    /*2.使用reactiv响应数据变化--
     {}表示一个对象，
     book: []表示其中一个数组
     */
    const ebooks1 = reactive({book: []})

    onMounted(() => {
      console.log("onMounted");
      axios.get("http://localhost:8087/ebook/list?name=Spring").then((res) =>{
        const data = res.data;
        ebooks.value = data.content
        ebooks1.book = data.content
        console.log(res)
      })
    })



    return {
      ebooks,
      ebooks2: toRef(ebooks1,"book"),
      listData,
      pagination: {
        onChange: (page: any) => {
          console.log(page);
        },
        pageSize: 3,
      },
      actions: [
        { type: 'StarOutlined', text: '156' },
        { type: 'LikeOutlined', text: '156' },
        { type: 'MessageOutlined', text: '2' },
      ]
    }
  }
});
</script>
